<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>

        li{
            line-height: 20px;
            margin: 5px;
            padding: 5px;
        }
    </style>
</head>

<body>
     <input type="password" name="" id="">
    <input type="radio" name="sex" id="" value="0">yyy
    <input type="radio" name="sex" id="" value="1">yyy
    <input type="radio" name="sex" id="" value="2">eee
    <input type="text" name="" id="" placeholder="uesrName">用户名
    <select name="city" id="">
        <option value="" selected="ture"> China</option>
        <option value="">japan</option>
        <option value="">usa</option>

    </select>
    上传文件：<input type="file" name="" id="">
    <textarea name="" id="">简介</textarea>
    <input type="submit" value="提交">
    <input type="reset" value="重置">

    <table border="1" style="height: 600px; width: 900px;">
        <tr>
            <td rowspan="2"></td>
            <td colspan="2">

            </td>
        </tr>
        <tr>

            <td></td>
            <td></td>
        </tr>
        <tr>
            <td>
                <ul style="width: 100%;
                height: 20px;">
                    <li></li>
                    <li></li>
                    <li></li>
                </ul>
            </td>
            <td>
                <ol style="width: 100%;
                height: 20px;">
                    <li></li>
                    <li></li>
                    <li></li>
                </ol>
            </td>
            <td></td>
        </tr>
    </table>
    <a href="https://www.douyin.com/" >
        <img src="./1.jpg" alt="HANA" title="111" style="width: 200px; height: 200px;">
    </a>
    <br>
    <a href="https://www.douyin.com/">tiazhaun</a> 
    <script>
        var a =false
        var x = a?'A':'B'
        console.log(x);
        console.log(typeof null);
        for (var i = 0; i < 10;i++) { 
            i++
        }
        console.log(i);
        console.log(
            eval(5+3*4) +eval(5+3*4)
        );
        var str ="Hello"
        console.log(str.indexOf('llo'));
        var a = 20;
        function foo() {
            console.log(a);
            var a = 10;
            console.log(a);
            
        }
        foo()
        
        function add() {
            var sum = 1+2;
            console.log(sum);
            
        }
        console.log(sum);
    </script>
</html>